Product Details

Rebuild kit for the GM 8L90 automatic transmission

Fits: GM, Cadillac, Chevrolet, GMC

8L90, 8L90E, 8 speed automatic

2015-up

This master overhaul transmission kit comes with the following rebuild parts:

• Full Transtec overhaul gasket set
• Complete set of friction clutch plates
• Internal high flow fluid filter

The Transtec gasket set included in this overhaul banner box kit is the highest quality available. The set includes every rubber seal, paper gasket, O-ring, sealing rings, and metal clad seals that you will need to complete your rebuild. The Transtec gasket sets are considered a premium kit, the reusable molded rubber pan gasket, and higher quality gaskets and seals throughout.

Additionally, you can add the following upgrades to this rebuild banner box kit:

• Steel plates
• ATSG Techtran rebuild manual
• Transgo Shift Kit
• Assembly Grease - Lubegard, Life Smart Blend, or Transjel
• Platinum Lubegard - Insider tip: Many shops use this synthetic supplement in every freshly rebuilt transmission to keep them on the road past the warranty.
• New HD torque converter

Remember to soak all of your clutches in transmission fluid for thirty minutes before you install them.

These transmissions can be found in the following vehicles; however, you should double check your application.  It is common for similar vehicles to have multiple transmission options available from the factory.

Cadillac

• Escalade, EXT, ESV

Chevrolet

• Camaro
• Colorado 5.3L
• Corvette
• Express Van 2500
• Silverado Truck 1500, 2500
• Suburban
• Tahoe

GMC

• Canyon 5.3L
• Savana Van 2500
• Sierra Truck 1500, 2500
• Yukon
• Yukon XL 1500
• Yukon Denali

These transmissions are part of the Turbo Hydramatic or Hydra-Matic series and also known by the following codes and part numbers: 8L90, 8L90E.

This transmission master rebuild kit fits the following years: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022.